v8/renderscript/java/src/android/support/v8/renderscript/ScriptGroup2.java - platform/frameworks/support.git - Git at Google

 /*
  * Copyright (C) 2015 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package android.support.v8.renderscript;

 import android.util.Log;
 import android.util.Pair;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;

 /**

 ******************************
 You have tried to change the API from what has been previously approved.

 To make these errors go away, you have two choices:
 1) You can add "@hide" javadoc comments to the methods, etc. listed in the
 errors above.

 2) You can update current.txt by executing the following command:
 make update-api

 To submit the revised current.txt to the main Android repository,
 you will need approval.
 ******************************

 @hide Pending Android public API approval.
 */
 public class ScriptGroup2 extends BaseObj {
     //FIXME: Change 23 to the codename when that is decided.
     private static final int MIN_API_VERSION = 23;

     public static class Closure extends BaseObj {
         private Object[] mArgs;
         private Allocation mReturnValue;
         private Map<Script.FieldID, Object> mBindings;

         private Future mReturnFuture;
         private Map<Script.FieldID, Future> mGlobalFuture;

         private FieldPacker mFP;

         private static final String TAG = "Closure";

         public Closure(long id, RenderScript rs) {
             super(id, rs);
         }

         public Closure(RenderScript rs, Script.KernelID kernelID, Type returnType,
                        Object[] args, Map<Script.FieldID, Object> globals) {
             super(0, rs);

             if (android.os.Build.VERSION.SDK_INT < MIN_API_VERSION && rs.isUseNative()) {
                 throw new RSRuntimeException("ScriptGroup2 not supported in this API level");
             }

             mArgs = args;
             mReturnValue = Allocation.createTyped(rs, returnType);
             mBindings = globals;
             mGlobalFuture = new HashMap<Script.FieldID, Future>();

             int numValues = args.length + globals.size();

             long[] fieldIDs = new long[numValues];
             long[] values = new long[numValues];
             int[] sizes = new int[numValues];
             long[] depClosures = new long[numValues];
             long[] depFieldIDs = new long[numValues];

             int i;
             for (i = 0; i < args.length; i++) {
                 Object obj = args[i];
                 fieldIDs[i] = 0;
                 if (obj instanceof UnboundValue) {
                     UnboundValue unbound = (UnboundValue)obj;
                     unbound.addReference(this, i);
                 } else {
                     retrieveValueAndDependenceInfo(rs, i, args[i], values, sizes,
                                                    depClosures, depFieldIDs);
                 }
             }

             for (Map.Entry<Script.FieldID, Object> entry : globals.entrySet()) {
                 Object obj = entry.getValue();
                 Script.FieldID fieldID = entry.getKey();
                 fieldIDs[i] = fieldID.getID(rs);
                 if (obj instanceof UnboundValue) {
                     UnboundValue unbound = (UnboundValue)obj;
                     unbound.addReference(this, fieldID);
                 } else {
                     retrieveValueAndDependenceInfo(rs, i, obj, values,
                                                    sizes, depClosures, depFieldIDs);
                 }
                 i++;
             }

             long id = rs.nClosureCreate(kernelID.getID(rs), mReturnValue.getID(rs),
                                         fieldIDs, values, sizes, depClosures, depFieldIDs);

             setID(id);
         }

         public Closure(RenderScript rs, Script.InvokeID invokeID,
                        Object[] args, Map<Script.FieldID, Object> globals) {
             super(0, rs);

             if (android.os.Build.VERSION.SDK_INT < MIN_API_VERSION && rs.isUseNative()) {
                 throw new RSRuntimeException("ScriptGroup2 not supported in this API level");
             }

             mFP = FieldPacker.createFieldPack(args);

             mArgs = args;
             mBindings = globals;
             mGlobalFuture = new HashMap<Script.FieldID, Future>();

             int numValues = globals.size();

             long[] fieldIDs = new long[numValues];
             long[] values = new long[numValues];
             int[] sizes = new int[numValues];
             long[] depClosures = new long[numValues];
             long[] depFieldIDs = new long[numValues];

             int i = 0;
             for (Map.Entry<Script.FieldID, Object> entry : globals.entrySet()) {
                 Object obj = entry.getValue();
                 Script.FieldID fieldID = entry.getKey();
                 fieldIDs[i] = fieldID.getID(rs);
                 if (obj instanceof UnboundValue) {
                     UnboundValue unbound = (UnboundValue)obj;
                     unbound.addReference(this, fieldID);
                 } else {
                     // TODO(yangni): Verify obj not a future.
                     retrieveValueAndDependenceInfo(rs, i, obj, values,
                                                    sizes, depClosures, depFieldIDs);
                 }
                 i++;
             }

             long id = rs.nInvokeClosureCreate(invokeID.getID(rs), mFP.getData(), fieldIDs,
                                               values, sizes);

             setID(id);
         }

         private static
                 void retrieveValueAndDependenceInfo(RenderScript rs,
                                                     int index, Object obj,
                                                     long[] values, int[] sizes,
                                                     long[] depClosures,
                                                     long[] depFieldIDs) {

             if (obj instanceof Future) {
                 Future f = (Future)obj;
                 obj = f.getValue();
                 depClosures[index] = f.getClosure().getID(rs);
                 Script.FieldID fieldID = f.getFieldID();
                 depFieldIDs[index] = fieldID != null ? fieldID.getID(rs) : 0;
                 if (obj == null) {
                     // Value is originally created by the owner closure
                     values[index] = 0;
                     sizes[index] = 0;
                     return;
                 }
             } else {
                 depClosures[index] = 0;
                 depFieldIDs[index] = 0;
             }

             ValueAndSize vs = new ValueAndSize(rs, obj);
             values[index] = vs.value;
             sizes[index] = vs.size;
         }

         public Future getReturn() {
             if (mReturnFuture == null) {
                 mReturnFuture = new Future(this, null, mReturnValue);
             }

             return mReturnFuture;
         }

         public Future getGlobal(Script.FieldID field) {
             Future f = mGlobalFuture.get(field);

             if (f == null) {
                 // If the field is not bound to this closure, this will return a future
                 // without an associated value (reference). So this is not working for
                 // cross-module (cross-script) linking in this case where a field not
                 // explicitly bound.
                 f = new Future(this, field, mBindings.get(field));
                 mGlobalFuture.put(field, f);
             }

             return f;
         }

         void setArg(int index, Object obj) {
             mArgs[index] = obj;
             ValueAndSize vs = new ValueAndSize(mRS, obj);
             mRS.nClosureSetArg(getID(mRS), index, vs.value, vs.size);
         }

         void setGlobal(Script.FieldID fieldID, Object obj) {
             mBindings.put(fieldID, obj);
             ValueAndSize vs = new ValueAndSize(mRS, obj);
             mRS.nClosureSetGlobal(getID(mRS), fieldID.getID(mRS), vs.value, vs.size);
         }

         private static final class ValueAndSize {
             public ValueAndSize(RenderScript rs, Object obj) {
                 if (obj instanceof Allocation) {
                     value = ((Allocation)obj).getID(rs);
                     size = -1;
                 } else if (obj instanceof Boolean) {
                     value = ((Boolean)obj).booleanValue() ? 1 : 0;
                     size = 4;
                 } else if (obj instanceof Integer) {
                     value = ((Integer)obj).longValue();
                     size = 4;
                 } else if (obj instanceof Long) {
                     value = ((Long)obj).longValue();
                     size = 8;
                 } else if (obj instanceof Float) {
                     value = ((Float)obj).longValue();
                     size = 4;
                 } else if (obj instanceof Double) {
                     value = ((Double)obj).longValue();
                     size = 8;
                 }
             }
             public long value;
             public int size;
         }
     }

     public static class Future {
         Closure mClosure;
         Script.FieldID mFieldID;
         Object mValue;

         Future(Closure closure, Script.FieldID fieldID, Object value) {
             mClosure = closure;
             mFieldID = fieldID;
             mValue = value;
         }

         Closure getClosure() { return mClosure; }
         Script.FieldID getFieldID() { return mFieldID; }
         Object getValue() { return mValue; }
     }

     public static class UnboundValue {
         // Either mFieldID or mArgIndex should be set but not both.
         List<Pair<Closure, Script.FieldID>> mFieldID;
         // -1 means unset. Legal values are 0 .. n-1, where n is the number of
         // arguments for the referencing closure.
         List<Pair<Closure, Integer>> mArgIndex;

         UnboundValue() {
             mFieldID = new ArrayList<Pair<Closure, Script.FieldID>>();
             mArgIndex = new ArrayList<Pair<Closure, Integer>>();
         }

         void addReference(Closure closure, int index) {
             mArgIndex.add(Pair.create(closure, Integer.valueOf(index)));
         }

         void addReference(Closure closure, Script.FieldID fieldID) {
             mFieldID.add(Pair.create(closure, fieldID));
         }

         void set(Object value) {
             for (Pair<Closure, Integer> p : mArgIndex) {
                 Closure closure = p.first;
                 int index = p.second.intValue();
                 closure.setArg(index, value);
             }
             for (Pair<Closure, Script.FieldID> p : mFieldID) {
                 Closure closure = p.first;
                 Script.FieldID fieldID = p.second;
                 closure.setGlobal(fieldID, value);
             }
         }
     }

     List<Closure> mClosures;
     List<UnboundValue> mInputs;
     Future[] mOutputs;

     private static final String TAG = "ScriptGroup2";

     public ScriptGroup2(long id, RenderScript rs) {
         super(id, rs);
     }

     ScriptGroup2(RenderScript rs, List<Closure> closures,
                  List<UnboundValue> inputs, Future[] outputs) {
         super(0, rs);

         if (android.os.Build.VERSION.SDK_INT < MIN_API_VERSION && rs.isUseNative()) {
             throw new RSRuntimeException("ScriptGroup2 not supported in this API level");
         }

         mClosures = closures;
         mInputs = inputs;
         mOutputs = outputs;

         long[] closureIDs = new long[closures.size()];
         for (int i = 0; i < closureIDs.length; i++) {
             closureIDs[i] = closures.get(i).getID(rs);
         }
         String cachePath = rs.getApplicationContext().getCacheDir().toString();
         long id = rs.nScriptGroup2Create(cachePath, closureIDs);
         setID(id);
     }

     public Object[] execute(Object... inputs) {
         if (inputs.length < mInputs.size()) {
             Log.e(TAG, this.toString() + " receives " + inputs.length + " inputs, " +
                   "less than expected " + mInputs.size());
             return null;
         }

         if (inputs.length > mInputs.size()) {
             Log.i(TAG, this.toString() + " receives " + inputs.length + " inputs, " +
                   "more than expected " + mInputs.size());
         }

         for (int i = 0; i < mInputs.size(); i++) {
             Object obj = inputs[i];
             if (obj instanceof Future || obj instanceof UnboundValue) {
                 Log.e(TAG, this.toString() + ": input " + i +
                       " is a future or unbound value");
                 return null;
             }
             UnboundValue unbound = mInputs.get(i);
             unbound.set(obj);
         }

         mRS.nScriptGroup2Execute(getID(mRS));

         Object[] outputObjs = new Object[mOutputs.length];
         int i = 0;
         for (Future f : mOutputs) {
             outputObjs[i++] = f.getValue();
         }
         return outputObjs;
     }

     /**
        @hide Pending Android public API approval.
     */
     public static final class Binding {
         public Script.FieldID mField;
         public Object mValue;
         public Binding(Script.FieldID field, Object value) {
             mField = field;
             mValue = value;
         }
     }

     /**
        @hide Pending Android public API approval.
     */
     public static final class Builder {
         RenderScript mRS;
         List<Closure> mClosures;
         List<UnboundValue> mInputs;
         private static final String TAG = "ScriptGroup2.Builder";

         public Builder(RenderScript rs) {
             mRS = rs;
             mClosures = new ArrayList<Closure>();
             mInputs = new ArrayList<UnboundValue>();
         }

         public Closure addKernel(Script.KernelID k, Type returnType, Object[] args,
                                  Map<Script.FieldID, Object> globalBindings) {
             Closure c = new Closure(mRS, k, returnType, args, globalBindings);
             mClosures.add(c);
             return c;
         }

         public Closure addInvoke(Script.InvokeID invoke, Object[] args,
                                  Map<Script.FieldID, Object> globalBindings) {
             Closure c = new Closure(mRS, invoke, args, globalBindings);
             mClosures.add(c);
             return c;
         }

         public UnboundValue addInput() {
             UnboundValue unbound = new UnboundValue();
             mInputs.add(unbound);
             return unbound;
         }

         public Closure addKernel(Script.KernelID k, Type returnType, Object... argsAndBindings) {
             ArrayList<Object> args = new ArrayList<Object>();
             Map<Script.FieldID, Object> bindingMap = new HashMap<Script.FieldID, Object>();
             if (!seperateArgsAndBindings(argsAndBindings, args, bindingMap)) {
                 return null;
             }
             return addKernel(k, returnType, args.toArray(), bindingMap);
         }

         public Closure addInvoke(Script.InvokeID invoke, Object... argsAndBindings) {
             ArrayList<Object> args = new ArrayList<Object>();
             Map<Script.FieldID, Object> bindingMap = new HashMap<Script.FieldID, Object>();
             if (!seperateArgsAndBindings(argsAndBindings, args, bindingMap)) {
                 return null;
             }
             return addInvoke(invoke, args.toArray(), bindingMap);
         }

         public ScriptGroup2 create(Future... outputs) {
             ScriptGroup2 ret = new ScriptGroup2(mRS, mClosures, mInputs, outputs);
             return ret;
         }

         private boolean seperateArgsAndBindings(Object[] argsAndBindings,
                                                 ArrayList<Object> args,
                                                 Map<Script.FieldID, Object> bindingMap) {
             int i;
             for (i = 0; i < argsAndBindings.length; i++) {
                 if (argsAndBindings[i] instanceof Binding) {
                     break;
                 }
                 args.add(argsAndBindings[i]);
             }

             for (; i < argsAndBindings.length; i++) {
                 if (!(argsAndBindings[i] instanceof Binding)) {
                     return false;
                 }
                 Binding b = (Binding)argsAndBindings[i];
                 bindingMap.put(b.mField, b.mValue);
             }

             return true;
         }

     }
 }
	/*
	* Copyright (C) 2015 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package android.support.v8.renderscript;

	import android.util.Log;
	import android.util.Pair;
	import java.util.ArrayList;
	import java.util.HashMap;
	import java.util.List;
	import java.util.Map;

	/**

	******************************
	You have tried to change the API from what has been previously approved.

	To make these errors go away, you have two choices:
	1) You can add "@hide" javadoc comments to the methods, etc. listed in the
	errors above.

	2) You can update current.txt by executing the following command:
	make update-api

	To submit the revised current.txt to the main Android repository,
	you will need approval.
	******************************

	@hide Pending Android public API approval.
	*/
	public class ScriptGroup2 extends BaseObj {
	//FIXME: Change 23 to the codename when that is decided.
	private static final int MIN_API_VERSION = 23;

	public static class Closure extends BaseObj {
	private Object[] mArgs;
	private Allocation mReturnValue;
	private Map<Script.FieldID, Object> mBindings;

	private Future mReturnFuture;
	private Map<Script.FieldID, Future> mGlobalFuture;

	private FieldPacker mFP;

	private static final String TAG = "Closure";

	public Closure(long id, RenderScript rs) {
	super(id, rs);
	}

	public Closure(RenderScript rs, Script.KernelID kernelID, Type returnType,
	Object[] args, Map<Script.FieldID, Object> globals) {
	super(0, rs);

	if (android.os.Build.VERSION.SDK_INT < MIN_API_VERSION && rs.isUseNative()) {
	throw new RSRuntimeException("ScriptGroup2 not supported in this API level");
	}

	mArgs = args;
	mReturnValue = Allocation.createTyped(rs, returnType);
	mBindings = globals;
	mGlobalFuture = new HashMap<Script.FieldID, Future>();

	int numValues = args.length + globals.size();

	long[] fieldIDs = new long[numValues];
	long[] values = new long[numValues];
	int[] sizes = new int[numValues];
	long[] depClosures = new long[numValues];
	long[] depFieldIDs = new long[numValues];

	int i;
	for (i = 0; i < args.length; i++) {
	Object obj = args[i];
	fieldIDs[i] = 0;
	if (obj instanceof UnboundValue) {
	UnboundValue unbound = (UnboundValue)obj;
	unbound.addReference(this, i);
	} else {
	retrieveValueAndDependenceInfo(rs, i, args[i], values, sizes,
	depClosures, depFieldIDs);
	}
	}

	for (Map.Entry<Script.FieldID, Object> entry : globals.entrySet()) {
	Object obj = entry.getValue();
	Script.FieldID fieldID = entry.getKey();
	fieldIDs[i] = fieldID.getID(rs);
	if (obj instanceof UnboundValue) {
	UnboundValue unbound = (UnboundValue)obj;
	unbound.addReference(this, fieldID);
	} else {
	retrieveValueAndDependenceInfo(rs, i, obj, values,
	sizes, depClosures, depFieldIDs);
	}
	i++;
	}

	long id = rs.nClosureCreate(kernelID.getID(rs), mReturnValue.getID(rs),
	fieldIDs, values, sizes, depClosures, depFieldIDs);

	setID(id);
	}

	public Closure(RenderScript rs, Script.InvokeID invokeID,
	Object[] args, Map<Script.FieldID, Object> globals) {
	super(0, rs);

	if (android.os.Build.VERSION.SDK_INT < MIN_API_VERSION && rs.isUseNative()) {
	throw new RSRuntimeException("ScriptGroup2 not supported in this API level");
	}

	mFP = FieldPacker.createFieldPack(args);

	mArgs = args;
	mBindings = globals;
	mGlobalFuture = new HashMap<Script.FieldID, Future>();

	int numValues = globals.size();

	long[] fieldIDs = new long[numValues];
	long[] values = new long[numValues];
	int[] sizes = new int[numValues];
	long[] depClosures = new long[numValues];
	long[] depFieldIDs = new long[numValues];

	int i = 0;
	for (Map.Entry<Script.FieldID, Object> entry : globals.entrySet()) {
	Object obj = entry.getValue();
	Script.FieldID fieldID = entry.getKey();
	fieldIDs[i] = fieldID.getID(rs);
	if (obj instanceof UnboundValue) {
	UnboundValue unbound = (UnboundValue)obj;
	unbound.addReference(this, fieldID);
	} else {
	// TODO(yangni): Verify obj not a future.
	retrieveValueAndDependenceInfo(rs, i, obj, values,
	sizes, depClosures, depFieldIDs);
	}
	i++;
	}

	long id = rs.nInvokeClosureCreate(invokeID.getID(rs), mFP.getData(), fieldIDs,
	values, sizes);

	setID(id);
	}

	private static
	void retrieveValueAndDependenceInfo(RenderScript rs,
	int index, Object obj,
	long[] values, int[] sizes,
	long[] depClosures,
	long[] depFieldIDs) {

	if (obj instanceof Future) {
	Future f = (Future)obj;
	obj = f.getValue();
	depClosures[index] = f.getClosure().getID(rs);
	Script.FieldID fieldID = f.getFieldID();
	depFieldIDs[index] = fieldID != null ? fieldID.getID(rs) : 0;
	if (obj == null) {
	// Value is originally created by the owner closure
	values[index] = 0;
	sizes[index] = 0;
	return;
	}
	} else {
	depClosures[index] = 0;
	depFieldIDs[index] = 0;
	}

	ValueAndSize vs = new ValueAndSize(rs, obj);
	values[index] = vs.value;
	sizes[index] = vs.size;
	}

	public Future getReturn() {
	if (mReturnFuture == null) {
	mReturnFuture = new Future(this, null, mReturnValue);
	}

	return mReturnFuture;
	}

	public Future getGlobal(Script.FieldID field) {
	Future f = mGlobalFuture.get(field);

	if (f == null) {
	// If the field is not bound to this closure, this will return a future
	// without an associated value (reference). So this is not working for
	// cross-module (cross-script) linking in this case where a field not
	// explicitly bound.
	f = new Future(this, field, mBindings.get(field));
	mGlobalFuture.put(field, f);
	}

	return f;
	}

	void setArg(int index, Object obj) {
	mArgs[index] = obj;
	ValueAndSize vs = new ValueAndSize(mRS, obj);
	mRS.nClosureSetArg(getID(mRS), index, vs.value, vs.size);
	}

	void setGlobal(Script.FieldID fieldID, Object obj) {
	mBindings.put(fieldID, obj);
	ValueAndSize vs = new ValueAndSize(mRS, obj);
	mRS.nClosureSetGlobal(getID(mRS), fieldID.getID(mRS), vs.value, vs.size);
	}

	private static final class ValueAndSize {
	public ValueAndSize(RenderScript rs, Object obj) {
	if (obj instanceof Allocation) {
	value = ((Allocation)obj).getID(rs);
	size = -1;
	} else if (obj instanceof Boolean) {
	value = ((Boolean)obj).booleanValue() ? 1 : 0;
	size = 4;
	} else if (obj instanceof Integer) {
	value = ((Integer)obj).longValue();
	size = 4;
	} else if (obj instanceof Long) {
	value = ((Long)obj).longValue();
	size = 8;
	} else if (obj instanceof Float) {
	value = ((Float)obj).longValue();
	size = 4;
	} else if (obj instanceof Double) {
	value = ((Double)obj).longValue();
	size = 8;
	}
	}
	public long value;
	public int size;
	}
	}

	public static class Future {
	Closure mClosure;
	Script.FieldID mFieldID;
	Object mValue;

	Future(Closure closure, Script.FieldID fieldID, Object value) {
	mClosure = closure;
	mFieldID = fieldID;
	mValue = value;
	}

	Closure getClosure() { return mClosure; }
	Script.FieldID getFieldID() { return mFieldID; }
	Object getValue() { return mValue; }
	}

	public static class UnboundValue {
	// Either mFieldID or mArgIndex should be set but not both.
	List<Pair<Closure, Script.FieldID>> mFieldID;
	// -1 means unset. Legal values are 0 .. n-1, where n is the number of
	// arguments for the referencing closure.
	List<Pair<Closure, Integer>> mArgIndex;

	UnboundValue() {
	mFieldID = new ArrayList<Pair<Closure, Script.FieldID>>();
	mArgIndex = new ArrayList<Pair<Closure, Integer>>();
	}

	void addReference(Closure closure, int index) {
	mArgIndex.add(Pair.create(closure, Integer.valueOf(index)));
	}

	void addReference(Closure closure, Script.FieldID fieldID) {
	mFieldID.add(Pair.create(closure, fieldID));
	}

	void set(Object value) {
	for (Pair<Closure, Integer> p : mArgIndex) {
	Closure closure = p.first;
	int index = p.second.intValue();
	closure.setArg(index, value);
	}
	for (Pair<Closure, Script.FieldID> p : mFieldID) {
	Closure closure = p.first;
	Script.FieldID fieldID = p.second;
	closure.setGlobal(fieldID, value);
	}
	}
	}

	List<Closure> mClosures;
	List<UnboundValue> mInputs;
	Future[] mOutputs;

	private static final String TAG = "ScriptGroup2";

	public ScriptGroup2(long id, RenderScript rs) {
	super(id, rs);
	}

	ScriptGroup2(RenderScript rs, List<Closure> closures,
	List<UnboundValue> inputs, Future[] outputs) {
	super(0, rs);

	if (android.os.Build.VERSION.SDK_INT < MIN_API_VERSION && rs.isUseNative()) {
	throw new RSRuntimeException("ScriptGroup2 not supported in this API level");
	}

	mClosures = closures;
	mInputs = inputs;
	mOutputs = outputs;

	long[] closureIDs = new long[closures.size()];
	for (int i = 0; i < closureIDs.length; i++) {
	closureIDs[i] = closures.get(i).getID(rs);
	}
	String cachePath = rs.getApplicationContext().getCacheDir().toString();
	long id = rs.nScriptGroup2Create(cachePath, closureIDs);
	setID(id);
	}

	public Object[] execute(Object... inputs) {
	if (inputs.length < mInputs.size()) {
	Log.e(TAG, this.toString() + " receives " + inputs.length + " inputs, " +
	"less than expected " + mInputs.size());
	return null;
	}

	if (inputs.length > mInputs.size()) {
	Log.i(TAG, this.toString() + " receives " + inputs.length + " inputs, " +
	"more than expected " + mInputs.size());
	}

	for (int i = 0; i < mInputs.size(); i++) {
	Object obj = inputs[i];
	if (obj instanceof Future \|\| obj instanceof UnboundValue) {
	Log.e(TAG, this.toString() + ": input " + i +
	" is a future or unbound value");
	return null;
	}
	UnboundValue unbound = mInputs.get(i);
	unbound.set(obj);
	}

	mRS.nScriptGroup2Execute(getID(mRS));

	Object[] outputObjs = new Object[mOutputs.length];
	int i = 0;
	for (Future f : mOutputs) {
	outputObjs[i++] = f.getValue();
	}
	return outputObjs;
	}

	/**
	@hide Pending Android public API approval.
	*/
	public static final class Binding {
	public Script.FieldID mField;
	public Object mValue;
	public Binding(Script.FieldID field, Object value) {
	mField = field;
	mValue = value;
	}
	}

	/**
	@hide Pending Android public API approval.
	*/
	public static final class Builder {
	RenderScript mRS;
	List<Closure> mClosures;
	List<UnboundValue> mInputs;
	private static final String TAG = "ScriptGroup2.Builder";

	public Builder(RenderScript rs) {
	mRS = rs;
	mClosures = new ArrayList<Closure>();
	mInputs = new ArrayList<UnboundValue>();
	}

	public Closure addKernel(Script.KernelID k, Type returnType, Object[] args,
	Map<Script.FieldID, Object> globalBindings) {
	Closure c = new Closure(mRS, k, returnType, args, globalBindings);
	mClosures.add(c);
	return c;
	}

	public Closure addInvoke(Script.InvokeID invoke, Object[] args,
	Map<Script.FieldID, Object> globalBindings) {
	Closure c = new Closure(mRS, invoke, args, globalBindings);
	mClosures.add(c);
	return c;
	}

	public UnboundValue addInput() {
	UnboundValue unbound = new UnboundValue();
	mInputs.add(unbound);
	return unbound;
	}

	public Closure addKernel(Script.KernelID k, Type returnType, Object... argsAndBindings) {
	ArrayList<Object> args = new ArrayList<Object>();
	Map<Script.FieldID, Object> bindingMap = new HashMap<Script.FieldID, Object>();
	if (!seperateArgsAndBindings(argsAndBindings, args, bindingMap)) {
	return null;
	}
	return addKernel(k, returnType, args.toArray(), bindingMap);
	}

	public Closure addInvoke(Script.InvokeID invoke, Object... argsAndBindings) {
	ArrayList<Object> args = new ArrayList<Object>();
	Map<Script.FieldID, Object> bindingMap = new HashMap<Script.FieldID, Object>();
	if (!seperateArgsAndBindings(argsAndBindings, args, bindingMap)) {
	return null;
	}
	return addInvoke(invoke, args.toArray(), bindingMap);
	}

	public ScriptGroup2 create(Future... outputs) {
	ScriptGroup2 ret = new ScriptGroup2(mRS, mClosures, mInputs, outputs);
	return ret;
	}

	private boolean seperateArgsAndBindings(Object[] argsAndBindings,
	ArrayList<Object> args,
	Map<Script.FieldID, Object> bindingMap) {
	int i;
	for (i = 0; i < argsAndBindings.length; i++) {
	if (argsAndBindings[i] instanceof Binding) {
	break;
	}
	args.add(argsAndBindings[i]);
	}

	for (; i < argsAndBindings.length; i++) {
	if (!(argsAndBindings[i] instanceof Binding)) {
	return false;
	}
	Binding b = (Binding)argsAndBindings[i];
	bindingMap.put(b.mField, b.mValue);
	}

	return true;
	}

	}
	}